Why is my iPad keyboard so small?

Does not work if the floating keyboard is the one activated when using the Apple pencil.

To easily return the new Floating Keyboard to the normal on-screen keyboard presentation, use the two-finger “zoom” gesture (i.e., the reverse of the two-finger “pinch”).

If the Split Keyboard is restored instead of the full on-screen keyboard, you can either use two fingers (one on each of the two half-keyboards) and swipe the two halves together - or touch-and-hold the “keyboard” key, then slide your finger to the Merge & Dock option and release.

Use the floating keyboard on your iPad – Apple Support

Split and move the keyboard on your iPad – Apple Support

If your iPad keyboard is small or split in half - Apple Support

See this support article: If your iPad keyboard is small or split in half - Apple Support